Laser cutting is laser processing industry is the most important application of technology, as have many other features, it has been widely used in automotive, rolling stock manufacturing, aerospace, electronics and metallurgy. In different industrial fields, laser with different solutions: laser cutting, welding, heat treatment, cladding and so on. Among them, the proportion of laser cutting in industrial laser applications accounted for about 70%. Laser cutting its speed, high precision and high cut quality is known. With advanced numerical control systems and tools, so that the laser has a very good performance in a two-dimensional, three-dimensional cutting.